72415880

素因数分解:

$2^3\times 5^1\times {\mathrm{1810397}}^1$

素因数の和:1810408

約数の個数: 16

約数和(自身を含む): 162935820

約数和(自身を除く): 90519940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1810397, 3620794, 7241588, 9051985, 14483176, 18103970, 36207940, 72415880]

約数ペア:

[(1, 72415880), (2, 36207940), (4, 18103970), (5, 14483176), (8, 9051985), (10, 7241588), (20, 3620794), (40, 1810397)]